.head{
    padding:0 0.2rem;
    position: relative;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
    text-align: center;
    height: 0.9rem;
    line-height: 0.9rem;
    background: #FFF;
    border-bottom: 1px solid #f4f4f4;
    box-shadow:0 1px 3px -1px #f4f4f4;
}
.head .headTitle{
    margin: 0 auto;
    max-width: 60%;
    color: #323233;
    font-size: 0.36rem;
    font-weight: 500;
}
.head .headLeft{
    bottom: 0;
    font-size: 0.28rem;
    position: absolute;
    left:0.1rem;
}
.head .headLeft img{
    height:0.5rem;
}
.head .headRight{
    bottom: 0;
    font-size: 0.28rem;
    position: absolute;
    right:0.1rem;
}
.headRight button{
    border:0;
    background: rgba(0,0,0,0);
    width:0.9rem;
    height:0.9rem;
    outline: none;
    vertical-align: middle;
}
.headRight button img{
   margin-top: -0.1rem;
    height:0.28rem;
}
.headRight button:active{
    background: #f5f5f5;
}
